ME8451 MANUFACTURING TECHNOLOGY – II
Prepared by
Er.NANDHAKUMAR (Admin)
Important questions
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Unit-1
1.Grashof's law
2.Tupes of mechanism and explain any one mechanism
transmission angle
Unit-2
1.Velocity and acceleration problems
Unit-3
1.Cam followers and motion
2.Pressure angle
Unit-4
1.Gear trains and problems
2.Speed ratio
Unit-5
1.sliding and roaling friction
2.Friction clutch
3.Belt and rope drive (most important)
**Very important questions are bolded and may be asked based on this topic
PART-C
1.Compulsory Questions {a case study where the student will have to read and analyse the subject }
a situation given and you have to answer on your own
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Share it as link alone . don't share it as screenshot or any text material if u found this anywhere kindly report me . #Admin WhatsAppContact uS
*These questions are expected for the exams This may or may not be asked for exams All the best.... from admin Santhosh
Thanks for your love and support guys keep supporting and share let the Engineers know about Us and leave a comment below for better improvements If there is any doubt feel free to ask me I will clear if I can or-else I will say some solutions ..get me through WhatsApp for instant updates ~$tuff$£ctorSYllabuS
Contact uS
*These questions are expected for the exams This may or may not be asked for exams
All the best.... from admin Santhosh
Thanks for your love and support guys keep supporting and share let the Engineers know about Us and leave a comment below for better improvements
If there is any doubt feel free to ask me I will clear if I can or-else I will say some solutions ..get me through WhatsApp for instant updates ~$tuff$£ctor UNIT I BASICS OF MECHANISMS
Classification of mechanisms — Basic kinematic concepts and definitions — Degree of freedom, Mobility — Kutzbach criterion, Gruebler?s criterion — Grashof?s Law — Kinematic inversions of four-bar chain and slider crank chains — Limit positions — Mechanical advantage — Transmission Angle — Description of some common mechanisms — Quick return mechanisms, Straight line generators, Universal Joint — rocker mechanisms.
UNIT II KINEMATICS OF LINKAGE MECHANISMS
Displacement, velocity and acceleration analysis of simple mechanisms — Graphical method– Velocity and acceleration polygons — Velocity analysis using instantaneous centres — kinematic analysis of simple mechanisms — Coincident points — Coriolis component of Acceleration — Introduction to linkage synthesis problem.
UNIT III KINEMATICS OF CAM MECHANISMS
Classification of cams and followers — Terminology and definitions — Displacement diagrams –Uniform velocity, parabolic, simple harmonic and cycloidal motions — Derivatives of follower motions — Layout of plate cam profiles — Specified contour cams — Circular arc and tangent cams — Pressure angle and undercutting — sizing of cams.
UNIT IV GEARS AND GEAR TRAINS
Law of toothed gearing — Involutes and cycloidal tooth profiles –Spur Gear terminology and
definitions –Gear tooth action — contact ratio — Interference and undercutting. Helical, Bevel, Worm, Rack and Pinion gears [Basics only]. Gear trains — Speed ratio, train value — Parallel axis gear trains — Epicyclic Gear Trains.
UNIT V FRICTION IN MACHINE ELEMENTS
Surface contacts — Sliding and Rolling friction — Friction drives — Friction in screw threads — Bearings and lubrication — Friction clutches — Belt and rope drives — Friction in brakes- Band and Block brakes.
Classification of mechanisms — Basic kinematic concepts and definitions — Degree of freedom, Mobility — Kutzbach criterion, Gruebler?s criterion — Grashof?s Law — Kinematic inversions of four-bar chain and slider crank chains — Limit positions — Mechanical advantage — Transmission Angle — Description of some common mechanisms — Quick return mechanisms, Straight line generators, Universal Joint — rocker mechanisms.
UNIT II KINEMATICS OF LINKAGE MECHANISMS
Displacement, velocity and acceleration analysis of simple mechanisms — Graphical method– Velocity and acceleration polygons — Velocity analysis using instantaneous centres — kinematic analysis of simple mechanisms — Coincident points — Coriolis component of Acceleration — Introduction to linkage synthesis problem.
UNIT III KINEMATICS OF CAM MECHANISMS
Classification of cams and followers — Terminology and definitions — Displacement diagrams –Uniform velocity, parabolic, simple harmonic and cycloidal motions — Derivatives of follower motions — Layout of plate cam profiles — Specified contour cams — Circular arc and tangent cams — Pressure angle and undercutting — sizing of cams.
UNIT IV GEARS AND GEAR TRAINS
Law of toothed gearing — Involutes and cycloidal tooth profiles –Spur Gear terminology and
definitions –Gear tooth action — contact ratio — Interference and undercutting. Helical, Bevel, Worm, Rack and Pinion gears [Basics only]. Gear trains — Speed ratio, train value — Parallel axis gear trains — Epicyclic Gear Trains.
UNIT V FRICTION IN MACHINE ELEMENTS
Surface contacts — Sliding and Rolling friction — Friction drives — Friction in screw threads — Bearings and lubrication — Friction clutches — Belt and rope drives — Friction in brakes- Band and Block brakes.